Hay-elevator



(No Model.)

B. OBORN.

HAY ELEVATOR.

No. 308,275.. Patented Nov. '18, 1884.

IIFHIII JIIHW I llllllllilli 6 ATTORNEY UNTTen STATES PATENT Trice.

BENJAMIN OBORN, OF MARION, OHIO.

HAY- ELEVATOR.

.JPECEEICATION forming part of Letters Patent No. 308,275, dated November 18, 1884.

Application filed September 20, 1884. (No model.)

To all 2071 0122, it may concern:

Be it known that I, BENJAMIN OBORN, of Marion, in the county of Manon and State of Ohio, have invented certain new and useful Improvements in Hay-Elevators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in hay-elevators, the object of the same being to provide an elevator in which the elevator proper shall he swiveled or pivotally secured to the car in such a manner as to readily adjust itself to the line of draft, a further object being to provide simple, durable, and efficient means for locking the block in elevated adjustment and forautomatically releasing it. With these ends in view my invention consists in certain features of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view of the elevator and carriage in side elevation; Fig. 2, a transverse vertical section through the swivel-bolt; and Fig. 3 is a view in end elevation of a portion of the block G.

The carriage A is supported upon four wheels, (0 and a, two wheels running on each rail of a single track, B. The bed of the carriage is provided with a vertical perforation or semicylindrical bearing, 1), centrally located therein.- The elevator proper, O, is secured to the bed of the carriage by a pivotal bolt, 0, which fits in the perforation or bearing b, and is allowed a free rotary motion therein. The bearing 1) for the pivotal bolt is preferably formed by semi-cylindrical recesses b, formed in the inner faces of the half-sections of the car, which sections, when boltedtogcther, secure the pivotal bolt in position. The ends of the elevator are provided with hook projections d, which engage laterally-proj ecting flanges E on the ends of the carriage-bed when the elevator is in position for traveling in either direction. The lower central portion of the elevator C is provided with a hook, F, formed integral therewith or rigidly secured thereto, the portion f of the elevator located above the tact with the stop m.

point of the hook having an oblique direction upwardly over the bite of the hook. I

G is the movable block, provided with a single sheave, g. The operating-rope H is secured at one end to the elevator at h, and leads from thence under the sheave g, thence over the pulley I, journaled in O, and off to the op erator. The block strap i terminates upwardly in two branches connected by a crossbar, k. The operating-rope is so secured to the elevator that the block G will rise in a vertical line passing through the bight of the hook F; hence as the block rises the cross-bar It will engage the outer rounded portion of the hook F, and the block will be thereby tilted out of line;"but as soon as the bar It strikes the oblique surface f above the hook it will be positively thrown over into the bight of the hook by the combined effect of its own inclination and the oblique surface against which it impinges. A pair of trip-levers, L, are pivotally secured to the elevator C-one on each side thereof-by abolt or pair of studs, 2. The outer ends of these levers are bent upwardly, as shown, and riveted or bolted to gether, thereby causing the levers to act as one. The inner ends of the levers, when they rest in their normal positions, extend over the bights of the hooks slightly below the oblique surfaces f, while their outer ends lie in close proximity to the under side of the track B, in a position to engage the stop at. The inner arms of the levers are provided with depending curved arms N, the ends of which are adapted to take under a longitudinal rib, a, formed on the crossbar k, when the latter is located in the bight of the hook.

The operation of the elevator is as follows: Suppose the carriage to be located over the load to be lifted, as shown in Fig. 1. The carriage is now held against motion on the track by the outer ends of the lever L in con- As the block G reaches its elevated position the cross-bar 7c lifts the inner ends of the -levers L, thereby releasing the outer ends from the stop m, and at the same time drops into the bight of the hook F, locking the load in an elevated position as the carriage moves along the track. As the earriage returns to its position over the load the outer ends of the levers L are depressed by the stop m, and the arms N take under the rib a of the cross-bar and release it from the hook F. My invention involves a radical departure in the construction and operation of hay elevators and carriers-viz., the elevator has a free rotary motion about the pivotal bolt, and will automatically adjust itself to the line of draft, so that the carriage is at any time reversed and run in the opposite direction by drawing the operating-rope'in that direction, while the end bearings of the rotary section on the carriagebed prevent undue strain on the pivotal bolt, and give it, when in position for travel, the strength of a non-reversible elevator. The small number 'of parts e1nployed in the construction of the above-described elevator, their strength, and ready adjustment combine to make the elevator efiicient, durable, and inexpensive.

It is evident that slight changes may be made in the form and arrangement of the sev' eral parts above described without departing from the spirit and scope of my invention; hence I do not wish to be understood as limiting myself strictly to the construction herein set forth; but,

Having fully described my invention, what I claim as new, and desire to secure byLetters Patent, is-- 1. In a hay-elevator, the CO11lbill2i-tlOl1,\\'ltl1 a track, a carriage, and a reversible elevatorsection centrally pivoted to the lower face of the carriage and provided with a rigid depending hook, of a lever pivoted to the re versible elevator section for disengaging the block from the hook.

2. In a hay-elevator, the combination, with a carriage having a depending heck, of an elevator-block the frame of which is provided with a cross-bar and ribs n, and the lever adapted to engage the ribs and move the block from OH the hook.

3. In a hay-elevator, the combination, with a carriage provided at opposite ends with outwardly-projecting flanges, of a reversible elevator-section provided with inwardly-pro ecting hooks, which latter overhang the flanges of the carriage, and a bolt pivotally connecting the reversible section to the carriage, substantially as set forth.

4.. Ina hay-elevator, the combination, with a track having a step or stop thereon, a carriage mounted on said track, and a reversible sect-ion pivoted to the carriage by a single bolt and provided with a depending hook, of the elevator-block and the lever pivoted to the reversible section,-all of the above parts eon structed as described.

In testimony whereof I have signed this specification in the presence of two subscrib- .ing witnesses.

V BENJAMIN OBORN.

lVitnesses:

JOHN F. hIONEAL, J OHN A. XVoLFoRn. 

